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Vulnerability record · CVE-2017-8932 · published 6 July 2017

CVE-2017-8932: Golang go vulnerability

Golang · Go

A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. This leads to a full key recovery attack against static ECDH, as used in popular JWT libraries.

5.9 CVSS 3.0 Medium EPSS 2.2% · top 17.8% CWE-682 · CWE-682
5.9CVSS 3.0 base score, v2 4.3
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. This leads to a full key recovery attack against static ECDH, as used in popular JWT libraries.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.html PatchThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.html PatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:1859
https://bugzilla.redhat.com/show_bug.cgi?id=1455191 Issue TrackingThird Party Advisory
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c Issue TrackingPatchThird Party Advisory
https://github.com/golang/go/issues/20040 Third Party Advisory
https://go-review.googlesource.com/c/41070/ Vendor Advisory
https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2K
http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.html PatchThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.html PatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:1859
https://bugzilla.redhat.com/show_bug.cgi?id=1455191 Issue TrackingThird Party Advisory
https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c Issue TrackingPatchThird Party Advisory
https://github.com/golang/go/issues/20040 Third Party Advisory
https://go-review.googlesource.com/c/41070/ Vendor Advisory
https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2K

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Source: NIST National Vulnerability Database (record CVE-2017-8932), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.